（疾病的）大流行，广泛传播A pandemic is an occurrence of a disease that affects many people over a very wide area.
（疾病的）流行，传播If there is an epidemic of a particular disease somewhere, it affects a very large number of people there and spreads quickly to other areas.
严惩;严厉打击;镇压A crackdown is strong official action that is taken to punish people who break laws.
PG级(建议在父母陪伴下观看); （parental guidance 父母陪同）
The Ratings Explained
G (general audiences): G ratings are most notable for what the films don’t include: sex and nudity, substance abuse, or realistic/noncartoon violence.
PG (parental guidance): Some material may not be suitable for children. The movie may have mildly strong language and some violence, but no substance use or physical abuse.
PG-13 (parental guidance-13): Some material may not be suitable for children under 13. Any nudity has to be nonsexual, and any swear words have to be used sparingly. Violence in PG-13 films may be intense, but must be bloodless.
R (restricted): No one under 17 admitted without an accompanying parent or guardian. This rating is given for frequent strong language and violence, nudity for sexual purposes, and drug abuse.
x-rated: (of movies, electronic images, books, magazines, etc.) containing very rude language or pictures or information about sex that is generally considered offensive
1 VERB 压榨;剥削;占…的便宜If you say that someone is exploiting you, you think that they are treating you unfairly by using your work or ideas and giving you very little in return.
Critics claim he exploited black musicians for personal gain.
...the plight of the exploited sugar cane workers.
2 VERB 利用；乘（机）If you say that someone is exploiting a situation, you disapprove of them because they are using it to gain an advantage for themselves, rather than trying to help other people or do what is right.
The government and its opponents compete to exploit the troubles to their advantage.
3 VERB 充分运用；发挥If you exploit something, you use it well, and achieve something or gain an advantage from it.
You'll need a good aerial to exploit the radio's performance...
Cary is hoping to exploit new opportunities in Europe...
4 VERB 开采;开发;利用To exploit resources or raw materials means to develop them and use them for industry or commercial activities.
I think we're being very short sighted in not exploiting our own coal.
5 N-COUNT 英勇行为;功绩;有趣的行为If you refer to someone's exploits, you mean the brave, interesting, or amusing things that they have done.
His wartime exploits were later made into a film.